We look at the division of 21901133 by 175 
The aim is to understand the frequency of 175 in 21901133.

Going ahead to step 1:
2 divided by 175 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 175

Going ahead to step 2:
175 can be fit into 21 0 times, resulting in a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 175

Let's proceed to step 3:
175 goes into 219 1 times with a remainder of 44.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 175 from 219 to get 44.
Append the next digit (0) from the dividend to 44 and continue with: 440 / 175

Let's proceed to step 4:
If we divide 440 by 175, we get 2 and a remainder of 90.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we take 350 away from 440, we end up with 90.
Bring next digit (1) of the dividend behind the 90 and repeat the process: 901 / 175

Advancing to step 5:
The number 175 fits into 901 5 times, leaving a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 125.0
If we subtract 875 from 901, we get 26.
Include the next digit (1) from the dividend after 26, then repeat: 261 / 175

Going ahead to step 6:
The number 175 fits into 261 1 times, leaving a remainder of 86.
Use 1 as the next digit of our solution. 
Result so far: 1251.0
Deduct 175 from 261 and we're left with 86.
Include the next digit (3) from the dividend after 86, then repeat: 863 / 175

Going ahead to step 7:
863 divided by 175 is 4 with a remainder of 163.
Use 4 as the next digit of our solution. 
Result so far: 12514.0
If we take 700 away from 863, we end up with 163.
Grab the next digit (3) from the dividend, add it to 163, then carry on: 1633 / 175

Let's proceed to step 8:
When dividing 1633 by 175, we get 9 with a remainder of 58.
Write down 9 as next digit of the result. 
Result so far: 125149.0
Subtracting 1575 from 1633 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 9:
When dividing 580 by 175, we get 3 with a remainder of 55.
Write down 3 as next digit of the result. 
Result so far: 125149.3
Subtract 525 from 580 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 10:
If we divide 550 by 175, we get 3 and a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 125149.33
Deduct 525 from 550 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The quotient of the division is 125149.33, and the remainder is 0.025.